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There are no such things as "stupid" questions. However if you think your question is a bit stupid, then this is the right place for you to post it. Please stick to easy to-the-point questions that you feel people can answer fast. For long and complicated questions prefer the other forums within the support section.
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What always worked for me using Windows was a utility named Imgburn.
You can download it here:http://www.freewarefiles.com/search.php ... ry=imgburn
no installation needed--just run the file, click the first icon 'Write image file to disc' and point to your unaltered Mint .iso download

You probably need to enter the bios and make sure that dvd is at the top of the boot order
list--and you should disable secure boot.

Getting into the bios setup menu varies from system to system, but often by pressing F2 or F10 (not always those) when you
see the manufacturer's splash screen as you power on or reboot your computer.
Often the correct key is indicated along the bottom of the boot splash screen.

I just read your post and the good replies to it. Here are my thoughts on this as well.

It would help to have more information from you, like what computer operating system are you currently using, like MS Windows and which version, or Mac and which version of that. What kind of computer are you using, make and model, and any other system information you can provide. Which edition and version of Linux Mint do you want to download and try?

The Linux Mint downloads are in an ".iso" disc image file format which can easily be "burned" to a DVD disc using most good DVD applications, or to a USB flash drive stick (using "unetbootin", etc...). I am not familiar with the DVD application you mentioned, but "Ashampoo Burning Studio Free" (or their paid for version) for MS Windows is fantastic and easy to use, search for this on the Internet to download and install it.

Once you have created (burned) a bootable DVD of the Live, Test Drive, installation version of Linux Mint from their "LinuxMint.iso" disc image file, then you have to tell your computer when you turn it on (during "start up"="Boot"="Boot Up") to "boot up" to your DVD drive. Most computers have boot up (start up) options, like press and hold the F1 key for Bios, or press and hold the F12 key for other "bootup" options (like boot to hard drive (normal), or DVD/CD drive, or removable drives, or USB drives). Unfortunately, these boot key options are different depending upon your computer's make and model.

You can also change your computer's Bios options, to change the "boot device priority", to DVD/CD first, then hard drive second, etc... Then, when you start your computer (boot), it will look to see if your DVD/CD drive has a bootable disc in it and boot to that, and if not, then it will boot to your hard drive like normal.